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Single-domain adding calcium permanent magnetic ferrite and preparation method thereof
The invention discloses a nano liquid phase adding calcium series permanent magnetic ferrite and a preparation method thereof, the molecular structure of the ferrite material is Z1-xAx [Fe12-yMy] zO19, wherein Z is a composition of one or two of Sr, Ca or Ba in proportion, M is one or a plurality substances selected from the group consisting of Ni, Co and Ga, the ranges of x, y and z are as follows: 0.0 <= x <= 0.30, 0.0<= y <=1.7, and 0.0 <= z <= 0.9. By use of a liquid phase acidizing additive, the nano liquid phase adding calcium series permanent magnetic ferrite can be sintered in a low oxygen atmosphere, and still keeps higher magnetic property, compared with traditional process, the range of the ferrite sintering temperature becomes wider; and finally the product molding cycle is shortened, and the finished product passing rate is increased dramatically.
Single-domain adding calcium permanent magnetic ferrite and preparation method thereof
The invention discloses a nano liquid phase adding calcium series permanent magnetic ferrite and a preparation method thereof, the molecular structure of the ferrite material is Z1-xAx [Fe12-yMy] zO19, wherein Z is a composition of one or two of Sr, Ca or Ba in proportion, M is one or a plurality substances selected from the group consisting of Ni, Co and Ga, the ranges of x, y and z are as follows: 0.0 <= x <= 0.30, 0.0<= y <=1.7, and 0.0 <= z <= 0.9. By use of a liquid phase acidizing additive, the nano liquid phase adding calcium series permanent magnetic ferrite can be sintered in a low oxygen atmosphere, and still keeps higher magnetic property, compared with traditional process, the range of the ferrite sintering temperature becomes wider; and finally the product molding cycle is shortened, and the finished product passing rate is increased dramatically.
Single-domain adding calcium permanent magnetic ferrite and preparation method thereof
LIU YE (Autor:in) / XIONG YANAO (Autor:in)
13.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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